package com.yupi.yupicturebackend.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.yupi.yupicturebackend.api.aliyunai.AliYunAiApi;
import com.yupi.yupicturebackend.api.aliyunai.model.CreateOutPaintingTaskRequest;
import com.yupi.yupicturebackend.api.aliyunai.model.CreateOutPaintingTaskResponse;
import com.yupi.yupicturebackend.model.dto.picture.*;
import com.yupi.yupicturebackend.model.entity.Picture;
import com.yupi.yupicturebackend.model.entity.Space;
import com.yupi.yupicturebackend.model.entity.User;
import com.yupi.yupicturebackend.exception.BusinessException;
import com.yupi.yupicturebackend.exception.ErrorCode;
import com.yupi.yupicturebackend.exception.ThrowUtils;
import com.yupi.yupicturebackend.manager.CosManager;
import com.yupi.yupicturebackend.manager.upload.FilePictureUpload;
import com.yupi.yupicturebackend.manager.upload.PictureUploadTemplate;
import com.yupi.yupicturebackend.manager.upload.UrlPictureUpload;
import com.yupi.yupicturebackend.mapper.PictureMapper;
import com.yupi.yupicturebackend.model.dto.file.UploadPictureResult;
import com.yupi.yupicturebackend.model.enums.PictureReviewStatusEnum;
import com.yupi.yupicturebackend.model.vo.UserVO;
import com.yupi.yupicturebackend.model.vo.picture.PictureVO;
import com.yupi.yupicturebackend.service.PictureService;
import com.yupi.yupicturebackend.service.UserService;
import com.yupi.yupicturebackend.utils.ColorSimilarUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.support.TransactionTemplate;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.awt.*;
import java.io.IOException;
import java.util.*;
import java.util.List;
import java.util.stream.Collectors;

/**
* @author MJB_Computer
* @description 针对表【picture(图片)】的数据库操作Service实现
* @createDate 2025-06-05 19:31:44
*/
@Slf4j
@Service
@RequiredArgsConstructor
public class PictureServiceImpl extends ServiceImpl<PictureMapper, Picture>
    implements PictureService {

    @Resource
    private FilePictureUpload filePictureUpload;

    @Resource
    private UrlPictureUpload urlPictureUpload;
    @Resource
    private final UserService userService;
    @Resource
    private CosManager cosManager;
    @Resource
    private final SpaceServiceImpl spaceService;
    @Resource
    private final TransactionTemplate transactionTemplate;
    @Autowired
    private AliYunAiApi aliYunAiApi;


    @Override
    public PictureVO uploadPicture(Object inputSource , PictureUploadRequest pictureUploadRequest, User loginUser) {
        ThrowUtils.throwIf(loginUser==null, ErrorCode.NO_AUTH_ERROR);

        //校验空间是否存在
        Long spaceId = pictureUploadRequest.getSpaceId();
        if(!ObjUtil.isEmpty(spaceId)){
            Space space = spaceService.getById(spaceId);
            ThrowUtils.throwIf(space==null, ErrorCode.NOT_FOUND_ERROR,"空间不存在");
            // 校验是否有空间的权限，仅空间管理员才能上传
            if(!space.getUserId().equals(loginUser.getId())){
                throw new BusinessException(ErrorCode.NO_AUTH_ERROR,"没有空间权限");
            }
            if(space.getTotalCount()>=space.getMaxCount()){
                throw new BusinessException(ErrorCode.OPERATION_ERROR,"空间容量已满");
            }
            if(space.getTotalSize()>=space.getMaxSize()){
                throw new BusinessException(ErrorCode.OPERATION_ERROR,"空间大小不足");
            }
        }
        //判断是用于新增还是更新图片
        Long pictureId=null;
        if(!ObjUtil.isEmpty(pictureUploadRequest)){
            pictureId=pictureUploadRequest.getId();
        }
        //如果是更新图片，需要校验图片是否存在
        if(!ObjUtil.isEmpty(pictureId)) {
            Picture oldPicture = this.getById(pictureId);
            ThrowUtils.throwIf(oldPicture == null, ErrorCode.NOT_FOUND_ERROR, "图片不存在");
//            //仅本人和管理员可编辑
//            if (!oldPicture.getUserId().equals(loginUser.getId()) && !userService.isAdmin(loginUser)) {
//                throw new BusinessException(ErrorCode.NO_AUTH_ERROR);
//            }
            // 校验空间是否一致
            // 没传 spaceId，则复用原有图片的 spaceId（这样也兼容了公共图库）
            if (spaceId == null) {
                if (oldPicture.getSpaceId() != null) {
                    spaceId = oldPicture.getSpaceId();
                }
            } else {
                // 传了 spaceId，必须和原图片的空间 id 一致
                if (ObjUtil.notEqual(spaceId, oldPicture.getSpaceId())) {
                    throw new BusinessException(ErrorCode.PARAMS_ERROR, "空间 id 不一致");
                }
            }
        }


        //上传图片，得到信息
        //按照用户id划分目录
            String uploadPathPrefix;
            if (spaceId == null) {
                // 公共图库
                uploadPathPrefix = String.format("public/%s", loginUser.getId());
            } else {
                // 空间
                uploadPathPrefix = String.format("space/%s", spaceId);
            }
        PictureUploadTemplate pictureUploadTemplate = filePictureUpload;
        if(inputSource instanceof String){
            pictureUploadTemplate = urlPictureUpload;
        }
        UploadPictureResult uploadPictureResult = pictureUploadTemplate.uploadPicture(inputSource, uploadPathPrefix);
        //构造入库的图片信息
        Picture picture = Picture.builder()
                .url(uploadPictureResult.getUrl())
                .thumbnailUrl(uploadPictureResult.getThumbnailUrl())
                .picSize(uploadPictureResult.getPicSize())
                .name(uploadPictureResult.getPicName())
                .picScale(uploadPictureResult.getPicScale())
                .picWidth(uploadPictureResult.getPicWidth())
                .picHeight(uploadPictureResult.getPicHeight())
                .picFormat(uploadPictureResult.getPicFormat())
                .userId(loginUser.getId())
                .picColor(uploadPictureResult.getPicColor())
                .spaceId(spaceId)
                .build();
        //支持外层传递图片名称
        if(pictureUploadRequest!=null&&StrUtil.isNotBlank(pictureUploadRequest.getPicName())){
            picture.setName(pictureUploadRequest.getPicName());
        }
        //补充审核参数
        this.fileReviewParams(picture,loginUser);

        //如果是更新，修改编辑时间
        if(picture!=null){
            picture.setId(pictureId);
            picture.setEditTime(new Date());
        }
        //开启事务
        Long finalSpaceId = spaceId;
        transactionTemplate.execute(status -> {
            //插入数据
            boolean result = this.saveOrUpdate(picture);
            ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR,"图片上传失败");
            if (finalSpaceId != null) {
                // 更新空间的使用额度
                boolean update = spaceService.lambdaUpdate()
                        .eq(Space::getId, finalSpaceId)
                        .setSql("totalSize = totalSize + " + picture.getPicSize())
                        .setSql("totalCount = totalCount + 1")
                        .update();
                ThrowUtils.throwIf(!update, ErrorCode.OPERATION_ERROR, "额度更新失败");
            }
            return picture;
        });



        return PictureVO.objToVo(picture);
    }
    @Override
    public PictureVO getPictureVO(Picture picture, HttpServletRequest request) {
        // 对象转封装类
        PictureVO pictureVO = PictureVO.objToVo(picture);
        // 关联查询用户信息
        Long userId = picture.getUserId();
        if (userId != null && userId > 0) {
            User user = userService.getById(userId);
            UserVO userVO = userService.getUserVo(user);
            pictureVO.setUser(userVO);
        }
        return pictureVO;
    }
    //分页获取图片封装
    @Override
    public Page<PictureVO> getPictureVOPage(Page<Picture> picturePage, HttpServletRequest request){
        List<Picture> pictureList = picturePage.getRecords();
        Page<PictureVO> pictureVOPage = new Page<>(picturePage.getCurrent(),picturePage.getSize(),picturePage.getTotal());
        if(CollUtil.isEmpty(pictureList)){
            return pictureVOPage;
        }
        //对象列表转换封装对象列表
        List<PictureVO> pictureVOList=pictureList.stream().map(PictureVO::objToVo).collect(Collectors.toList());
        //关联查询用户信息
        Set<Long> userIdSet = pictureList.stream().map(Picture::getUserId).collect(Collectors.toSet());
        Map<Long, List<User>> userIdUserListMap = userService.listByIds(userIdSet).stream().collect(Collectors.groupingBy(User::getId));

        //填充信息
        pictureVOList.forEach(pictureVO -> {
            Long userId = pictureVO.getUserId();
            User user=null;
            if(userIdUserListMap.containsKey(userId)){
                user=userIdUserListMap.get(userId).get(0);
            }
            pictureVO.setUser(userService.getUserVo(user));
        });
        pictureVOPage.setRecords(pictureVOList);
        return pictureVOPage;
    }
    //编写图片数据校验方法，用于更新和修改图片是进行判断
    @Override
    public void validPicture(Picture picture){
        ThrowUtils.throwIf(picture==null,ErrorCode.PARAMS_ERROR);
        //从参数中获取值
        Long id = picture.getId();
        String url = picture.getUrl();
        String introduction = picture.getIntroduction();
        ThrowUtils.throwIf(ObjUtil.isNull(id), ErrorCode.PARAMS_ERROR, "id 不能为空");
        if (StrUtil.isNotBlank(url)) {
            ThrowUtils.throwIf(url.length() > 1024, ErrorCode.PARAMS_ERROR, "url 过长");
        }
        if (StrUtil.isNotBlank(introduction)) {
            ThrowUtils.throwIf(introduction.length() > 800, ErrorCode.PARAMS_ERROR, "简介过长");
        }

    }

    @Override
    public void doPictureReview(PictureReviewRequest pictureReviewRequest, User loginUser) {
        //1.校验参数
        Long id = pictureReviewRequest.getId();
        Integer reviewStatus = pictureReviewRequest.getReviewStatus();
        PictureReviewStatusEnum enumByValue = PictureReviewStatusEnum.getEnumByValue(reviewStatus);
        if(id==null||enumByValue==null||PictureReviewStatusEnum.REVIEWING.equals(enumByValue)){
            throw new BusinessException(ErrorCode.PARAMS_ERROR);
        }
        //2.判断图片是否存在
        Picture oldPicture = this.getById(id);
        ThrowUtils.throwIf(oldPicture==null,ErrorCode.NOT_FOUND_ERROR);
        //3.校验审核状态是否重复
        if(oldPicture.getReviewStatus().equals(reviewStatus)){
            throw new BusinessException(ErrorCode.OPERATION_ERROR,"请勿重复审核");
        }
        //4.数据库操作
        Picture updatePicture = new Picture();
        BeanUtil.copyProperties(pictureReviewRequest,  updatePicture);
        updatePicture.setReviewerId(loginUser.getId());
        updatePicture.setReviewTime(new Date());
        boolean result = this.updateById(updatePicture);
        ThrowUtils.throwIf(!result,ErrorCode.OPERATION_ERROR);
    }
    //设置审核状态通用方法
    @Override
    public void fileReviewParams(Picture picture, User loginUser){
        //管理员自动过审
        if(userService.isAdmin(loginUser)){
            picture.setReviewStatus(PictureReviewStatusEnum.PASS.getValue());
            picture.setReviewerId(loginUser.getId());
            picture.setReviewMessage("管理员自动过审");
            picture.setReviewTime(new Date());
        }
        //非管理员，创建或编辑要改为待审核
        else {
            picture.setReviewStatus(PictureReviewStatusEnum.REVIEWING.getValue());
        }
    }

    @Override
    public Integer uploadPictureByBatch(PictureUploadByBatchRequest pictureUploadByBatchRequest, User loginUser) {
        String searchText = pictureUploadByBatchRequest.getSearchText();
        //格式化数量
        Integer count = pictureUploadByBatchRequest.getCount();
        ThrowUtils.throwIf(count>30,ErrorCode.PARAMS_ERROR,"最多爬取30条");

        //要抓取的地址
        String fetchUrl = String.format("https://cn.bing.com/images/async?q=%s&mmasync=1", searchText);
        Document document;
        try {
            document = Jsoup.connect(fetchUrl)
                    .userAgent("Mozilla/5.0")
                    .timeout(10000).get();
        } catch (IOException e) {
            log.error("获取页面失败",e);
            throw new BusinessException(ErrorCode.OPERATION_ERROR,"获取页面失败");
        }
        Element div = document.getElementsByClass("dgControl").first();
        if(ObjUtil.isNull(div)){
            throw new BusinessException(ErrorCode.OPERATION_ERROR, "获取元素失败");
        }
        Elements imgElementList = div.select("img.mimg");
        int uploadCount=0;
        String namePrefix = pictureUploadByBatchRequest.getNamePrefix();
        if (StrUtil.isBlank(namePrefix)) {
            namePrefix = searchText;
        }
        for(Element imgElement:imgElementList){
            String fileUrl=imgElement.attr("data-src");
            if(fileUrl.isEmpty()){
                fileUrl=imgElement.attr("src");
            }
            if(StrUtil.isBlank(fileUrl)){

                log.info("当前链接为空，已跳过: {}", fileUrl);
                continue;
            }
            // 处理图片上传地址，防止出现转义问题
            int questionMarkIndex = fileUrl.indexOf("?");
            if(questionMarkIndex>-1){
                fileUrl=fileUrl.substring(0,questionMarkIndex);
            }
            //上传图片
            PictureUploadRequest pictureUploadRequest = new PictureUploadRequest();
            if (StrUtil.isNotBlank(namePrefix)) {
                // 设置图片名称，序号连续递增
                pictureUploadRequest.setPicName(namePrefix + (uploadCount + 1));
            }
            try{
                PictureVO pictureVO = this.uploadPicture(fileUrl, pictureUploadRequest, loginUser);
                log.info("图片上传成功, id = {}", pictureVO.getId());
                uploadCount++;
            }catch (Exception e){
                log.error("图片上传失败, url = {}",  e);
                continue;
            }
            if(uploadCount>=count){
                break;
            }
        }
        return (Integer) uploadCount;


    }

    @Override
    public void deletePicture(long pictureId, User loginUser) {
     ThrowUtils.throwIf(pictureId<=0,ErrorCode.PARAMS_ERROR);
     ThrowUtils.throwIf(loginUser==null,ErrorCode.NOT_LOGIN_ERROR);
        //判断是否存在
        Picture oldPicture = this.getById(pictureId);
        ThrowUtils.throwIf(oldPicture==null,ErrorCode.NOT_FOUND_ERROR);
        //校验权限
//        this.checkPictureAuth(loginUser, oldPicture);
        //操作数据库
        transactionTemplate.execute(status -> {
            //插入数据
            boolean result = this.removeById(pictureId);
            ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR,"图片删除失败");
            Long spaceId = oldPicture.getSpaceId();
            if(spaceId!=null){
                boolean update = spaceService.lambdaUpdate()
                        .eq(Space::getId, oldPicture.getSpaceId())
                        .setSql("totalSize=totalSize-" + oldPicture.getPicSize())
                        .setSql("totalCount=totalCount-1")
                        .update();
                ThrowUtils.throwIf(!update, ErrorCode.OPERATION_ERROR,"额度更新失败");
            }

            return true;
        });

        //清理图片资源
        this.clearPictureFile(oldPicture);
    }

    @Override
    public void editPicture(PictureEditRequest pictureEditRequest, User loginUser){
        // 在此处将实体类和 DTO 进行转换
        Picture picture = new Picture();
        BeanUtils.copyProperties(pictureEditRequest, picture);
        // 注意将 list 转为 string
        picture.setTags(JSONUtil.toJsonStr(pictureEditRequest.getTags()));
        // 设置编辑时间
        picture.setEditTime(new Date());
        // 数据校验
        this.validPicture(picture);
        // 判断是否存在
        long id = pictureEditRequest.getId();
        Picture oldPicture = this.getById(id);
        ThrowUtils.throwIf(oldPicture == null, ErrorCode.NOT_FOUND_ERROR);
        // 校验权限
//        this.checkPictureAuth(loginUser, oldPicture);
        //审核参数
        this.fileReviewParams(picture,loginUser);
        // 操作数据库
        boolean result = this.updateById(picture);
        ThrowUtils.throwIf(!result, ErrorCode.OPERATION_ERROR);
    }
    @Override
    public QueryWrapper<Picture> getQueryWrapper(PictureQueryRequest pictureQueryRequest) {
        QueryWrapper<Picture> queryWrapper = new QueryWrapper<>();
        if (pictureQueryRequest == null) {
            return queryWrapper;
        }
        // 从对象中取值
        Long id = pictureQueryRequest.getId();
        String name = pictureQueryRequest.getName();
        String introduction = pictureQueryRequest.getIntroduction();
        String category = pictureQueryRequest.getCategory();
        List<String> tags = pictureQueryRequest.getTags();
        Long picSize = pictureQueryRequest.getPicSize();
        Integer picWidth = pictureQueryRequest.getPicWidth();
        Integer picHeight = pictureQueryRequest.getPicHeight();
        Double picScale = pictureQueryRequest.getPicScale();
        String picFormat = pictureQueryRequest.getPicFormat();
        String searchText = pictureQueryRequest.getSearchText();
        Long userId = pictureQueryRequest.getUserId();
        Integer reviewStatus = pictureQueryRequest.getReviewStatus();
        String reviewMessage = pictureQueryRequest.getReviewMessage();
        Long reviewerId = pictureQueryRequest.getReviewerId();
        Long spaceId = pictureQueryRequest.getSpaceId();
        boolean nullSpaceId = pictureQueryRequest.isNullSpaceId();
        String sortField = pictureQueryRequest.getSortField();
        String sortOrder = pictureQueryRequest.getSortOrder();
        Date startEditTime = pictureQueryRequest.getStartEditTime();
        Date endEditTime = pictureQueryRequest.getEndEditTime();
        // 从多字段中搜索
        if (StrUtil.isNotBlank(searchText)) {
            // 需要拼接查询条件
            // and (name like "%xxx%" or introduction like "%xxx%")
            queryWrapper.and(
                    qw -> qw.like("name", searchText)
                            .or()
                            .like("introduction", searchText)
            );
        }
        queryWrapper.eq(ObjUtil.isNotEmpty(id), "id", id);
        queryWrapper.eq(ObjUtil.isNotEmpty(userId), "userId", userId);
        queryWrapper.eq(ObjUtil.isNotEmpty(spaceId), "spaceId", spaceId);
        queryWrapper.isNull(nullSpaceId, "spaceId");
        queryWrapper.like(StrUtil.isNotBlank(name), "name", name);
        queryWrapper.like(StrUtil.isNotBlank(introduction), "introduction", introduction);
        queryWrapper.like(StrUtil.isNotBlank(picFormat), "picFormat", picFormat);
        queryWrapper.like(StrUtil.isNotBlank(reviewMessage), "reviewMessage", reviewMessage);
        queryWrapper.eq(StrUtil.isNotBlank(category), "category", category);
        queryWrapper.eq(ObjUtil.isNotEmpty(picWidth), "picWidth", picWidth);
        queryWrapper.eq(ObjUtil.isNotEmpty(picHeight), "picHeight", picHeight);
        queryWrapper.eq(ObjUtil.isNotEmpty(picSize), "picSize", picSize);
        queryWrapper.eq(ObjUtil.isNotEmpty(picScale), "picScale", picScale);
        queryWrapper.eq(ObjUtil.isNotEmpty(reviewStatus), "reviewStatus", reviewStatus);
        queryWrapper.eq(ObjUtil.isNotEmpty(reviewerId), "reviewerId", reviewerId);
        queryWrapper.ge(ObjUtil.isNotEmpty(startEditTime), "editTime", startEditTime);
        queryWrapper.lt(ObjUtil.isNotEmpty(endEditTime), "editTime", endEditTime);

        // JSON 数组查询
        if (CollUtil.isNotEmpty(tags)) {
            /* and (tag like "%\"Java\"%" and like "%\"Python\"%") */
            for (String tag : tags) {
                queryWrapper.like("tags", "\"" + tag + "\"");
            }
        }
        // 排序
        queryWrapper.orderBy(StrUtil.isNotEmpty(sortField), sortOrder.equals("ascend"), sortField);
        return queryWrapper;
    }
    @Async
    @Override
    public void clearPictureFile(Picture oldPicture){
        //判断改图是否被多条记录使用
        String pictureUrl = oldPicture.getUrl();
        long count = this.lambdaQuery()
                .eq(Picture::getUrl, pictureUrl)
                .count();

        if(count>1){
            return;
        }
        cosManager.deleteObject(oldPicture.getUrl());
        //清除缩略图
        String thumbnailUrl = oldPicture.getThumbnailUrl();
        if(StrUtil.isNotBlank(thumbnailUrl)){
            cosManager.deleteObject(thumbnailUrl);
        }
    }
    //根据颜色查询图片
    @Override
    public List<PictureVO> searchPictureByColor(Long spaceId, String picColor, User loginUser){
        // 1. 校验参数
        ThrowUtils.throwIf(spaceId == null || StrUtil.isBlank(picColor), ErrorCode.PARAMS_ERROR);
        ThrowUtils.throwIf(loginUser == null, ErrorCode.NO_AUTH_ERROR);
        // 2. 校验空间权限
        Space space = spaceService.getById(spaceId);
        ThrowUtils.throwIf(space == null, ErrorCode.NOT_FOUND_ERROR, "空间不存在");
        if (!loginUser.getId().equals(space.getUserId())) {
            throw new BusinessException(ErrorCode.NO_AUTH_ERROR, "没有空间访问权限");
        }
        // 3. 查询该空间下所有图片（必须有主色调）
        List<Picture> pictureList = this.lambdaQuery()
                .eq(Picture::getSpaceId, spaceId)
                .isNotNull(Picture::getPicColor)
                .list();
        // 如果没有图片，直接返回空列表
        if (CollUtil.isEmpty(pictureList)) {
            return Collections.emptyList();
        }
        // 将目标颜色转为 Color 对象
        Color targetColor = Color.decode(picColor);
        // 4. 计算相似度并排序
        List<Picture> sortedPictures = pictureList.stream()
                .sorted(Comparator.comparingDouble(picture -> {
                    // 提取图片主色调
                    String hexColor = picture.getPicColor();
                    // 没有主色调的图片放到最后
                    if (StrUtil.isBlank(hexColor)) {
                        return Double.MAX_VALUE;
                    }
                    Color pictureColor = Color.decode(hexColor);
                    // 越大越相似
                    return -ColorSimilarUtils.calculateSimilarity(targetColor, pictureColor);
                }))
                // 取前 12 个
                .limit(12)
                .collect(Collectors.toList());

        // 转换为 PictureVO
        return sortedPictures.stream()
                .map(PictureVO::objToVo)
                .collect(Collectors.toList());
    }

    @Override
    public void checkPictureAuth(User loginUser, Picture picture) {
        Long spaceId = picture.getSpaceId();
        Long loginUserId = loginUser.getId();
        if(spaceId==null){
            //公共图库，本人和管理员可操作
            if(!picture.getUserId().equals(loginUserId)&&!userService.isAdmin(loginUser)){
                throw new BusinessException(ErrorCode.NO_AUTH_ERROR);
            }
        }else {
            //私有图库,仅空间管理员可操作
            if(!picture.getUserId().equals(loginUserId)){
                throw new BusinessException(ErrorCode.NO_AUTH_ERROR);
            }
        }

    }
    @Transactional(rollbackFor = Exception.class)
    @Override
    public void editPictureByBatch(PictureEditByBatchRequest pictureEditByBatchRequest, User loginUser) {
        List<Long> pictureIdList = pictureEditByBatchRequest.getPictureIdList();
        Long spaceId = pictureEditByBatchRequest.getSpaceId();
        String category = pictureEditByBatchRequest.getCategory();
        List<String> tags = pictureEditByBatchRequest.getTags();
        // 1. 校验参数
        ThrowUtils.throwIf(spaceId == null || CollUtil.isEmpty(pictureIdList), ErrorCode.PARAMS_ERROR);
        ThrowUtils.throwIf(loginUser == null, ErrorCode.NO_AUTH_ERROR);
        // 2. 校验空间权限
        Space space = spaceService.getById(spaceId);
        ThrowUtils.throwIf(space == null, ErrorCode.NOT_FOUND_ERROR, "空间不存在");
        if (!loginUser.getId().equals(space.getUserId())) {
            throw new BusinessException(ErrorCode.NO_AUTH_ERROR, "没有空间访问权限");
        }
        // 3. 查询指定图片，仅选择需要的字段
        List<Picture> pictureList = this.lambdaQuery()
                .select(Picture::getId, Picture::getSpaceId)
                .eq(Picture::getSpaceId, spaceId)
                .in(Picture::getId, pictureIdList)
                .list();
        if(CollUtil.isEmpty(pictureList)){
            return;
        }
        // 4. 更新分类和标签
        pictureList.forEach(picture -> {
            if (StrUtil.isNotBlank(category)) {
                picture.setCategory(category);
            }
            if (CollUtil.isNotEmpty(tags)) {
                picture.setTags(JSONUtil.toJsonStr(tags));
            }
        });
        // 批量重命名
        String nameRule = pictureEditByBatchRequest.getNameRule();
        fillPictureWithNameRule(pictureList, nameRule);

        // 5. 批量更新
        boolean result = this.updateBatchById(pictureList);
        ThrowUtils.throwIf(!result,ErrorCode.OPERATION_ERROR);

    }
    /*ai扩图*/
    @Override
    public CreateOutPaintingTaskResponse createOutPaintingTask(CreatePictureOutPaintingTaskRequest createPictureOutPaintingTaskRequest, User loginUser) {
        // 获取图片信息
        Long pictureId = createPictureOutPaintingTaskRequest.getPictureId();
        Picture picture=Optional.ofNullable(this.getById(pictureId))
                .orElseThrow(() -> new BusinessException(ErrorCode.NOT_FOUND_ERROR, "图片不存在"));
        // 权限校验
//        checkPictureAuth(loginUser, picture);
        //构造请求参数
        CreateOutPaintingTaskRequest taskReq = new CreateOutPaintingTaskRequest();
        CreateOutPaintingTaskRequest.Input intput=new CreateOutPaintingTaskRequest.Input();
        intput.setImageUrl(picture.getUrl());
        BeanUtils.copyProperties(createPictureOutPaintingTaskRequest,  taskReq);
        //创建任务
        return aliYunAiApi.createOutPaintingTask(taskReq);
    }
    /**
     * nameRule 格式：图片{序号}
     *
     * @param pictureList
     * @param nameRule
     */
    private void fillPictureWithNameRule(List<Picture> pictureList, String nameRule) {
        if (CollUtil.isEmpty(pictureList) || StrUtil.isBlank(nameRule)) {
            return;
        }
        long count = 1;
        try {
            for (Picture picture : pictureList) {
                String pictureName = nameRule.replaceAll("\\{序号}", String.valueOf(count++));
                picture.setName(pictureName);
            }
        } catch (Exception e) {
            log.error("名称解析错误", e);
            throw new BusinessException(ErrorCode.OPERATION_ERROR, "名称解析错误");
        }
    }

}




